Merge branch 'vs/prompt-avoid-unset-variable' into maint
[git] / t / helper / test-revision-walking.c
1 /*
2  * test-revision-walking.c: test revision walking API.
3  *
4  * (C) 2012 Heiko Voigt <hvoigt@hvoigt.net>
5  *
6  * This code is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License version 2 as
8  * published by the Free Software Foundation.
9  */
10
11 #include "cache.h"
12 #include "commit.h"
13 #include "diff.h"
14 #include "revision.h"
15
16 static void print_commit(struct commit *commit)
17 {
18         struct strbuf sb = STRBUF_INIT;
19         struct pretty_print_context ctx = {0};
20         ctx.date_mode.type = DATE_NORMAL;
21         format_commit_message(commit, " %m %s", &sb, &ctx);
22         printf("%s\n", sb.buf);
23         strbuf_release(&sb);
24 }
25
26 static int run_revision_walk(void)
27 {
28         struct rev_info rev;
29         struct commit *commit;
30         const char *argv[] = {NULL, "--all", NULL};
31         int argc = ARRAY_SIZE(argv) - 1;
32         int got_revision = 0;
33
34         init_revisions(&rev, NULL);
35         setup_revisions(argc, argv, &rev, NULL);
36         if (prepare_revision_walk(&rev))
37                 die("revision walk setup failed");
38
39         while ((commit = get_revision(&rev)) != NULL) {
40                 print_commit(commit);
41                 got_revision = 1;
42         }
43
44         reset_revision_walk();
45         return got_revision;
46 }
47
48 int main(int argc, char **argv)
49 {
50         if (argc < 2)
51                 return 1;
52
53         setup_git_directory();
54
55         if (!strcmp(argv[1], "run-twice")) {
56                 printf("1st\n");
57                 if (!run_revision_walk())
58                         return 1;
59                 printf("2nd\n");
60                 if (!run_revision_walk())
61                         return 1;
62
63                 return 0;
64         }
65
66         fprintf(stderr, "check usage\n");
67         return 1;
68 }